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2018 MM > Fiber 10-18-2018BH > Flashcards

Fiber 10-18-2018BH Flashcards

1
Q

A device that generates a light source used in optical fiber communication

A

Laser

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2
Q

What does LASER stand for ?

A

Light Amplification Stimulated by Emission of Radiation

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3
Q

An extremely thin flexible thread of pure cladded glass able to carry millions of times the information of a traditional copper wire, and do it over greater distances

A

Optical Fiber

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4
Q

What is the diameter of an Optical Fiber?

A

125 microns

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5
Q

The distance between two points of like phase in a wave?

A

Wavelength

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6
Q

A card made up of material similar to photographic film that changes colors when exposed to light?

A

Photosensitive Card

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7
Q

Wavelengths above ___ nm are not visible to the human eye?

A

650 nm

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8
Q

5 types of Laser Classifications?

A

Class 1, Class 2/2A, Class 3A, Class 3B, Class 4

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9
Q

ANSI standard for lasers

A

Z-136

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10
Q

What is the range for visible light?

A

390nm - 780nm and 384THz - 769 THz

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11
Q

2 Types of fiber

A

single- mode and multi-mode

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12
Q

What is the size of the core?

A

8-10 microns

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13
Q

What is the size of the cladding?

A

125 microns

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14
Q

What is the size of the coating?

A

250 microns

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15
Q

The center of the fiber that carries the transmitted light?

A

Core

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16
Q

The glass material surrounding the fiber core?

A

Cladding

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17
Q

The acrylic or plastic material applied over the optical fiber core and cladding?

A

Coating

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18
Q

The ratio of the velocity of light of two mediums of optical glass?

A

Refractive Index

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19
Q

Different fiber packaging configurations

A

Fiber Bundles

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20
Q

A photodiode used to detect light from an optical fiber and convert the light to an electrical source?

A

PIN Diode

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21
Q

Sum of all the losses associated with a fiber link between the optical fiber transmitter and the optical fiber receiver

A

Loss Budget

22
Q

What does OTDR stand for?

A

Optical Time Domain Reflectometer

23
Q

A jumper cable for optical connections

24
Q

A board for making optical connections consisting of sleeves used to line up two connectors

A

Patch Panel

25
Q

Fibers are contained in a plastic tube much larger than the optical fibers

A

Loose Tube

26
Q

Color-coded tubes that house and protect the optical fibers within a fiber optic cable

A

Buffer Tubes

27
Q

What is the color scheme for Fiber Optic Cable?

A

1.Blue 2. Orange , 3. Green , 4. Brown , 5. Slate, 6. White, 7. Red , 8. Black, 9. Yellow ,10. Violet ,11. Rose, 12. Aqua

28
Q

Method of joining two optical fibers of the same type using and electrical arc to form a precision splice

A

Fusion Splicing

29
Q

A temporary joining of two optical fibers of the same tube using a plastic form to hold and lock the fibers together The loss is greater than a fusion splice

A

Mechanical Splicing

30
Q

A device that scores and then breaks the optical fiber to prepare it for splicing

31
Q

What is used to remove gel from the fibers?

A

At least 90% pure Isopropyl alcohol

32
Q

Name two types of fusion splicers

A
  1. LID (local injection and detection

2. Profile Alignment

33
Q

A string included as part of the optical fibers protection , used to separate and cut the outer jacket and the armor

34
Q

What is the maximum loss for a fusion splice?

35
Q

A rectangular plastic form used to connect optical fiber to optical devices

A

Snap Connector

36
Q

Used like a snap connector but a twist lock feature much like a BNC RF connector

A

Ferruled Connector

37
Q

What does UPC stand for?

A

Ultra Polished Connector

38
Q

What does APC stand for?

A

Angled Polished Connector

39
Q

Precision polished flat cut to provide a precision mating of the two optical fiber glass surfaces

A

UPC connector

40
Q

uses an 8-12 degree angled cut end

A

APC connector

41
Q

A special optical fiber connector used in gigabit Ethernet Devices

A

LCSC connector

42
Q

Enables different wavelengths to carried on a single optical fiber

A

Wave Division Multiplexing

43
Q

An electronic or optical process that combines several individual signals or wavelengths into s single carrier or path

A

Multiplexing

44
Q

What does DWDM stand for?

A

Dense Wave Division Multiplexing

45
Q

Allows multiple wavelengths above and below a center wavelength to be carried on a single optical fiber

A

Dense Wave Division Multiplexing (DWDM)

46
Q

A connection point in a cable system where a fiber enters a neighborhood and the optical signal is converted to an electrical signal to connect to coaxial cables serving 200 - 1800 individual homes

47
Q

455nM–wavelength color

48
Q

480nM— wavelength color

49
Q

550nM— wavelength color

50
Q

750nM— wavelength color

51
Q

1310nM— wavelength color

52
Q

total internal reflection was first demonstrated, by whom, in what year?

A

john tindal, 1854. (demonstrated how light reflected through a stream of water to the Royal society of London)

2018 MM (59 decks)

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